Suppose that you needed to make a pen for some small animals. You have 13 m of fencing. You decide to make a circular pen,

Question

Suppose that you needed to make a pen for some small animals. You have 13 m of fencing. You decide to make a circular pen, because if you wish to enclose an area using a given length of fencing, then a circular fence encloses a larger area than a fence of any other shape. What is the radius r of the pen?

Express your answer in meters to four significant figures.

Kunduz · Accepted Answer

Click to see the answer